Miley Cyrus on 'chemistry' with 'Last Song' costar Liam Hemsworth

miley-cyrus-liam-hemsworth-kisss.jpg Miley Cyrus has her mother to thank for casting Australian hottie Liam Hemsworth as her love interest in the new Nicholas Sparks film, "The Last Song."

Even though Miley tells The Dish Rag exclusively that she felt "chemistry" with Liam when they read together, she still let her producer mom make all the casting calls.

Yeah, OK. But Kelly Preston also told us that Miley actually asked her to play her mother in the film. They met when Miley worked with husband John Travolta on "Bolt." So we have to think Miley might have given a little thumbs up to her mom about picking Liam.

Not that we blame her!